Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RJ

Robert M. Gemmill, Jr. — 20 Patents

ExxonMobil: 19 patents #559 of 10,161Top 6%
Pitman, NJ: #4 of 54 inventorsTop 8%
New Jersey: #4,040 of 69,400 inventorsTop 6%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Robert M. Gemmill, Jr. has been granted 20 US patents while listed as an inventor at ExxonMobil. The first was granted in 1980 and the most recent in July 2001. Robert M. Gemmill, Jr. ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Robert M. Gemmill, Jr. in Pitman, NJ, US.

Patents per Year

Patents granted per year, 1980 to 2001Bar chart with a peak of 4 patents in 1981.peak 41980: 3 patents19801981: 4 patents19811983: 3 patents19831984: 3 patents19841985: 2 patents19851986: 2 patents19861988: 2 patents19882001: 1 patents2001

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6268176 TRC8, a gene related to the hedgehog receptor, patched Harry A. Drabkin 2001-07-31
4787996 Mannich base oil additives Andrew G. Horodysky 1988-11-29 $3,703,000
4786426 Lubricant composition Andrew G. Horodysky 1988-11-22 $5,810,000
4613343 N-alkoxyalkylenediamine [organic acid reaction products] diamides and lubricants containing same Andrew G. Horodysky 1986-09-23 $10,976,000
4584114 Multifunctional lubricant additives and compositions thereof Andrew G. Horodysky, Phillip S. Landis 1986-04-22 $12,980,000
4556497 N-Alkoxyalkylenediamine diamides and lubricants containing same Andrew G. Horodysky 1985-12-03 $14,026,000
4541941 Mixed borate esters and their use as lubricant and fuel additives Andrew G. Horodysky 1985-09-17 $8,965,000
4472289 Mixed borate esters and their use as lubricant and fuel additives Andrew G. Horodysky 1984-09-18 $7,227,000
4463201 Process for making synthetic lubricating oils John W. Schick 1984-07-31 $7,304,000
4440655 Sulfur-containing mannich bases and lubricants containing same Andrew G. Horodysky 1984-04-03 $9,418,000
4396517 Phenolic-containing mannich bases and lubricants containing same Andrew G. Horodysky 1983-08-02 $11,944,000
4382869 Friction reducing and corrosion inhibiting lubricant additives and their compositions Andrew G. Horodysky, Phillip S. Landis 1983-05-10 $9,148,000
4374032 Lubricant composition containing borated oxazoline friction reducer Andrew G. Horodysky 1983-02-15 $6,697,000
4256592 Phosphorus-containing compounds and lubricants containing same Andrew G. Horodysky 1981-03-17 $111,941,000
4255271 Phosphorus-containing compounds and lubricants containing same Andrew G. Horodysky 1981-03-10 $28,623,000
4253978 Phosphorus-containing compounds and lubricants containing same Andrew G. Horodysky 1981-03-03 $24,237,000
4253973 Phosphorus-containing compounds and lubricants containing same Andrew G. Horodysky 1981-03-03 $24,237,000
4225739 Process for improving olefin polymer oil properties Richard N. Nipe, John W. Schick 1980-09-30 $24,563,000
4193882 Corrosion inhibited lubricant composition 1980-03-18 $20,888,000
4182922 Synthetic hydrocarbon lubricating oil John W. Schick 1980-01-08 $13,269,000